LIGO Document E0900095-v1

DCN for Advanced LIGO Polishing Revision ITM and ETM

Document #:
LIGO-E0900095-v1
Document type:
E - Engineering documents
Other Versions:
Abstract:
ITM E080511-v2
FROM
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature: 1934m ± 3m.

TO - V3
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature (R): 1934 m -5, +15 m absolute accuracy
ROC precision: R ± 3 m where 1929 m = R = 1949 m for all ITM optics

Similarly
ETM E080512-V2
FROM
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature: 2245 m ± 3 m.

TO - V3
Optical Surface Figure, measured over the central 160 mm diameter
Surface 1: Spherical, concave. Radius of curvature (R): 2245 m -5, +15 m absolute accuracy
ROC precision: R ± 3 m where 2240 m = R = 2260 m for all ETM optics

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Notes and Changes:
There are no substantive drawing changes. Just updating the specification version number
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